Selecting device



Nov' 15, 1927. 1,649,168

L. 1.. LADD SELECTING DEVICE Filed Oct. 17, 1921 2 Sheets-Sheet l p232g22707 265K1 7" Lad z.

Patented Nov. 15, 1927.

LESTER L. LADD, OF LOCKPOBT, ILLINOIS, ASSIGNOB CORPORATION, OF CHICAGO,

PATENT. OFFICE.

TO PHOTOMETRIC PRODUCTS ILLINOIS, A CORPORATION OF DELAWARE.

snnncrme DEVICE.

Application filed October 17, 1921. Serial No. 508,411.

This invention relates to selective control devices, and moreparticularly to a device.

wherein any desired mechanism may be selectively controlled by theposition of a swinging needle or arm, and is an improvement on thedevice shown in my application Serial No. 422,561, filed November 8,1920.

The invention further relates to a device wherein any desired mechanismmay be solectively controlled by the position of an indicating needle,adapted to assume various positions in accordance with the variations ofan electric current, the variations of the current being in accordancewith the characteristics of the objects to be acted on by the mechanismcontrolled by said device.

- It is a purpose of the invention to provide a control device, having aplurality of oppositely arranged contacts and a movable member that isadapted to bridge the gap between any pair of said contacts to completea circuit to operate any desired mechanism in accordance with theselection of said control device, the selection being in accordance withthe position of said movable member.

It is a further purpose of the invention to provide a control devicehaving a plurality of oppositely arranged contacts and aswinging needlecarrying a member operating between said contacts adapted to bridge thegap between them to complete a circuit to operate any desired devices inaccordance with the selection of the control device, dependent upon theposition of said needle under the influence of the variations of avariable electric current. It is a still further purpose of theinvention to provide a device of the above mentioned character whereinboth of said sets of contacts are movable toward each other, and whereinthe" needle loosely supports a contact member that is adapted to bepinched or clamped between said movable contacts to complete a tipliedwithout unnecessary multiplication of the operating devices of themechanism controlled by said control device.

It is a further object of the invention to provide stop members at theopposite ends of one of said sets of contacts to limit the movement ofsaid needle, said stop members serving as contacts to be operated due tothe effect on the needle of all objects out of the range of saidselecting mechanism.

It is also an object of the invention to provide a single spring meansfor moving said contacts toward each other so as to yield ingly grip thecontact on the swinging needle between them and to provide adjustingmeans for said contacts.

It is a further object of the invention to provide means for adjustingthe needle so that the pivot thereof will be at such a point that thecontact member carried thereby will be at the center of the spacebetween the faces of the contacts between which said contact memberoperates.

Other objects and advantages of the invention will appear as thedescription of the accompanying drawings, showing one form that myinvention may take, proceeds. However, I desire to have it distinctlyunderstood thatl do not intend to limit myself to the exact details ofstructure shown in the accompanying drawings or described in thespecification but desire to include as part of my invention all suchobvious modifications and changes in structure as would occur to aperson skilled in this art and as would fall within the scope of theclaims.

In the drawings:

Fig. l is a plan view of the selector em bodied in the presentinvention;

Fig. 2 is a section thereof taken on the line 22 of Fig. 1;

Fig. 3 is a section taken on line 3-3 of Fig. 1;

Fig. 4- is a section taken on the line 4.-4= of Fig. 1; and V i Fig. 5is a circuit diagram showing the arrangement of the contacts andelectromagnets operated by said selector.

Referring in detail to the drawings, the improved selector comprises acasing 10 having the end members 11 and the side members 12, one of theend members 11 being provided with an extension 13 having a secured tothe oke-like portion 14 and both said end memers 11 being provided withbosses 15 and with openings 16 through which extend guide rods 17.

The bottom of the casing 10 is provided with an upstanding ear 18 ateach side thereof. Each of the ears 18 is provided with an openingforming a bearing for the pivot member 19 of the bell crank lever 20, sa1d bell crank lever having an arm 21 extending upwardly from the sameand terminating in a U-shaped member 22 which serves as a bearing forthe stub shaft 23 provided on the block 24, there being two of said stubshafts, one extending laterall from each end of the block 24, the block24 eing mounted slidably on the rods 17. The other arm 25 of the bellcrank lever has pivotally secured thereto at 26 the link 27 which link27 is pivotally mounted at 28 on the member 29 which extends from onerod 17 to the other rod 17 and is mounted on the rods so as to movetherewith, being secured thereto by means of pins 30 or in any othersuitable manner.

Mounted on the member 29 is a plurality of contacts 31. The member 29 isalso provided with a pair of end contacts32, said contacts 32 beingprovided with projections 33 which act as stops for the needle 34 of theindicating instrument 35 operated by means of the coil 36, the needle ofsaid indicating instrument being mounted to turn with the shaft 37mounted in bearings 38 on the bracket 39 and the plate 40 respectively.The needle 34 member 41 at the end thereof which carries a contactmember 42. It will be seenfrom the above that the needle 34 will swingabout the axis of the pivots at 37 as a center so that the contacts 42will swing in an arc, the center of curvature of which is at the pivotpoint 37.

The block 24 is provided with a plurality of contacts arranged in setsof five, said contacts being numbered 43, 44, 45;, 46 and 47respectively. All of the contacts 43 are connected together by means ofthe connector 48 which is electrically connected with the wire,

49 which leads out of the instrument; similarly, all of the contacts 44are connected with the connector 50 which is in turn connected with thewire 51; all of the contacts 45 are electrically connected by means ofthe connector 52 which is connected with the wire 53 leading out of theinstrument all of the contacts 46 are connected by means of theconnector 54 which is electrically con nected with the wire 55 whichleads out of the instrument; and

all of the contacts 46 are connected by means of the connector 56v whichis electrically connected with the wire 57 which also leads out of theinstrument.

The wires 49, 51, 53, 55 and 57 pass through the yoke 58 of insulatingmaterial block 24. Each of the conis provided with a hook-like 7convexly curved as shown at 61 and the cooperating contacts beingconcavely curved as shown at 62. Operating in the space 63 between saidcontacts is the contact member 42 on the end of the needle 34. vent thecontact member carried by the end of the needle from engaging with thecontacts on the opposite sides thereof which would prevent the needlefrom swinging, an adjustment is provided for the indicating instrumentso as to adjust the pivots 37 thereof so as to provide for the swingingof the needle freely between the contacts. The member 40 is providedwith laterally projeoting tongues 64 which are adapted to slide in thegrooves 65 provided in the member 10, the member 10 being provided witha removable plate 66 forming one wall of the groove so as to provide forthe removal of the plate 40 carrying the indicating instrument, whendesired.

The plate 40 is provided with a rearwardly extending arm 67 having aforwardly extending receive the restricted portion 70 of the screw 1which is screwthreadedly received in the internally screwthreaded boss72 on the member 11 and which is provided with a knurled head 73 forturning the same.

It will be seen that as the knurled head 73 is turned, the arm 67 willbe moved inward- 1y or outwardly depending upon the direction ofrotation of the head of the screw, thus moving the slidable member 40longitudinally of the casing 10 so as to adjust the position of thepivot 37. The casing is provided with a glass cover 74 to close thesame. The members 17 extend beyond the casing and are threaded at theends at 75 and are provided with nuts 7 6 engaging said threads.

Mounted on the rods 17 and operating between the nuts 76 and the bosses15 is the cross bar or yoke 77 having a laterally deflected portion 78.The end member 11 is provided with a central boss 79 and an opening 80through which extends the rod 81 serving as a guide member for themember 17, said member being provided with an opening 82 to receive saidrod 81. Coiled about the rod 81 is a spring 83, said spring 83 hearingagainst the boss 84 on the member 11 and against the deflected portion78 of the yoke 77. The rod or shaft 81 is provided with a forked orbifurcated portion at the end thereof having the arms 85 between whichis journaled the roller 86.

In order to preportion 68 with a bore 69 therein to will be moved downor up depending upon the direction in which the screw is turned.

The end of the yoke 14 is provided with an enlargement at 92 whichscrewthreadedly receives the screwthreaded sleeve 93 having thehexagonal head portion 94 with which the block 91 is adapted to engagewhen the same is screwed down. The member 93 acts as a stop to limit themovement of the yoke 77. The yoke 77 is moved outwardly or away from thecasing by the action of the spring 83 and as the yoke bears against thenuts 76, the rods 17 are carried with the yoke and the member 29 iscarried with the rods so as to swing the links 27 and bell crank lever20 in such a direction that the block 24 approaches the block 29 and thecontacts that are opposite each other will approach each other.

It will thus be seen that by adjusting the 4 position of the member 93,the distance which the contacts will travel toward each other will beadjusted thereby.

In order to separate the contacts, the rod 82 has the roller 86 on theend thereof engaging with a cam 95 having a raised portion 96 and adepressed portion 97 and when the roller 86 engages with the raisedportion 96, the spring will be compressed and the parts will be in theposition shown in the drawings with the contacts separated so that theneedle can carry the movable contact 42 along between the same. However,when the low portion of the cam 97 is in engagement with the roller 86,then the spring will be allowed to act to bring the contacts toward eachother and clamp the movable contact 42 therebetween to complete thecircuit between the contacts.

The projections 33 act as stops to limit the movement of the movablecontact member as the same cannot swing past the projections 33. Thewires from the contacts extend downwardly into the casing and pass outthrough the opening 98 provided in the bottom of the casing 10, one ofthe wires 53 being shown as passing through the same from one set ofcontacts and a wire 99 from the other set of contacts being shown aspassing through said opening 98. The needle 34 is provided with arearward extension 100 that is adapted to engage with the stop members101 and 102 to limit the movement of the needle, said members being soplaced that the needle will engage with said stops at the same time thatit engages with the stop members 33.

, number of mechanical parts.

Referring now to Fig. 5 in which figure are shown the end contacts 31 ofthe series of contacts 31, the contacts cooperating with said contacts31 and the end contacts 59 and 59, and the stop members cooperatingtherewith; in said figure the line wires 103 and 104 are shown with thewire 103 having the wires 99 and 99' leading therefrom to the contacts31. The wire 99 has an electromagnet 105 in series therewith while thewire 99 has no such eleetromagnet.

For the sake of convenience, in Fig. 5 the member cooperating with themember 59 is designated 32, and the member cooperating with the member59 is designated 32. Opposite the contacts 31 are sets of contacts, anynumber of said contacts being usable in a set but five being used in thepresent construction, said contacts being numbered 43, 44, 45, 46, and47, as described in connection with the other figures of the drawings.

As previously described, the contact members 43 are connected by thewire 48; the contact members 44 are connected by means of thewire 50;the contact members 45 are connected by means of the wire 53; thecontact members 46 are connected by the wire 54; and the contact members47 are connected by means of the wire 56. The wire 48 also connects thecontact 59' with the contacts 43 and the contacts 59 and 59 areconnected by means of the connector 106. Thus the contact 59 is alsoconnected with the contacts 43 electrically. The members 32 and 32 areconnected by the connector 107 and the member 32 is connected with theadjoining contact 31 by the connecting memher 108; thus the cont-acts 32and 32' and one of the end contacts 31 are electrically connected. Fromthe lead 104 extends the wire 109 which has a switch 110 interposed inthe length thereof. The connector 48 is connected with the wire 109 bymeans of the wire 49; the connector 50 is connected with the wire 109 bymeans of the wire 51 which has the electromagnet 110 in seriestherewith; the wire 53 which connects the connector 52 with the wire 109has the electromagnet 111 in series therewith; the wire 55 whichconnects the connecting member 54 with the wire 109 has the electromanet 112 in series therewith; and the wire 5 which connects the member 56with the wire 109 has the electromagnet 113 in series therewith.

The present invention is adapted for use in selectively controlledmechanism of various sorts and is particularly adapted for use withasorting machine such as that described in my co-pending application,Serial No. 508,410; filed Oct. 17,1921. The selector is particularlyadapted for making a large number of selections with a minimum In orderto do this. the selector is so constructed and the mechanism operatingtherewith must be so v into briefly here in operated that the operationsperformed by the mechanism through the aid of the electromagnets 110,111, 112 and 113, is done in two parts or steps.

In the above mentioned application a machine is shown that is providedwith a hopper for receiving articles to be sorted from which thearticles are carried into the range of a photoelectric cell, whichphotoelectric cell is effected by the color of the articles so as toproduce a current strength dependent upon the color. The currentproduced by the photoelectric cell is very'small as is well known, andthis is amplified by the use of a thermionic amplifier, commonly knownas an audion, in the usual manner. The amplified current is the currentthat is passed through the indicating instrument shown in the presentapplication, and as the various contacts are made, two sets of devicesare operated to cause the carrier upon which the article is supported todump the article at. a station in accordance with the position of theneedle of the instrument. By the use of two different devices the actionof one of the devices is multiplied so as to reduce the number of partsnecessary to obtain a large number of selections. In the form shown inthe above mentioned application this is accomplished by providing aremovable support at various points along the route of travel of thecarriers, the support being selectively removed in accordance with theposition of the needle of the indicating instrument and the direction ofdischarge of the article is controlled to multiply the selections bymeans of a switching mechanism which guides a projection on the carrierinto any one of a plurality of annular tracks to vary the angularity ofthe carrier relative to the radial position. This is more :fullydescribed in my application,'serial N 0. 508,410, referred to above, andis only gone order to convey an idea of the general application of thedevice shown in the present application, and it will be obvious that thesame can be used for selecting articles in other ways than that referredto above without departing from the invention.

, In the device shown the number of difi'erent selections istwenty-nine, there being thirty different combinations of contactspossible but one of these is used to discharge articles not desired fromthe machine in the case of the sorting machine and could be used for anyother purpose desired in any other device to which the selector can beadapted.

In order to obtain the thirty difi'erent combinations of contacts, thesmall contacts are arranged in six sets of five each and the contacts 31are arranged so that each contact 31 is opposite a set of five of saidsmaller contacts. In order to reduce the number of electrically operatedparts tromagnets, there is one positive mechanically operated mechanismprovided to correspond with the contacts controlling the wires 49 and 99which are not provided with electromagnets.

It will be noted that when the movable contact 42 is opposite thecontact 31 connected with the wire 99 and opposite the contact 47 asshown in Fig. 5, the electromagnet 113 will operate to operate mechanism controlled thereby and the mechanically operated mechanism willoperate due to the fact that the current is passing through the wire 99in conjunction with said mechanism controlled by the magnet 113, whilewhen the contact member 42 is opposite the contact member 46, themechanism controlled by the magnet 112 will operate in conjunction withthe mechanism that is solely placed in operation by mechanical means andsimilarly the mechanism controlled by the electromagnets 111 and 110will be operated thereby when the movable contact is opposite thecontacts 45 and 44 respectively, said mechanism operating, of course, inconjunction with the mechanically controlled mechanism which operateswhen the current passes through the member 99.

When the contact 42 is opposite the contact 43 and said contact 31, thenthe mechanism set in operation by said mechanical means will be thrownin operation and will operate in conjunction with. means thrown intooperation mechanically, due to the fact that the current is passingthrough the wire 49 which has no electromagnet operating in conjunctiontherewith. Although the device operated when the current is passingthrough the wires 99 and 49 is positively operated it is so arrangedthat it will not operate until after the possibility of any of the otherdevices operating on the mechanism is passed. When the movable contact42 is opposite one of the said contacts 44, 45, 46, or 47 and one of thecontacts 31 connected with the wire 99, the electromagnet 105 in serieswith said wire will set certain mechanism in operation which willoperate in conjunction with the mechanism controlled by the particularmagnet 110, 111, 112 or 113 which is connected with said contactsthrough the wires as previously described, while if the movable contactis opposite the contact 43 and said member 31, then the electromagnet105 will operate in conjunction with the mechanical means forcontrolling certain mechanisms in operation which operates positivelyand is controlled by the wire 49.

The contacts 32 and 32 are provided with stops 33 for limiting themovement of the member 42 and said contacts are connected with eachother as previously described by means of the wire 107 while thecooperating contacts 59 and 59' are connected by means through theelecof the wire 106 and said contacts are respectively connected withthe one end contact 31 by means of the conductor 108 and with thecontacts 43 by means of the conductor 48 so that when the member 42reaches the limit of its movement in either direction, the samemechanism will be operated as would be operated if the movable contactmember were opposite the last member 31 that is provided with anoperating magnet 105 and opposite the contact 43 assq: ciated therewith,thus providing a means for discharging articlesfrom a machine that arenot within the range of the selections when said mechanism is used forsorting as described in. said co-pending application mentioned above. Itis to be noted that the mechanism operated by the devices is arranged insuch a manner that the operations would take place successively,depending on the position of the contact 42, from right to left in Fig.5, that is, the first possible operation by the device controlled by theselecting means is that controlled by the contact 31 at the right end ofthe instrument and the member 43, and this also is the operation whicheliminates from the machine all articles out of the range of themachine, due to the operation of the stops and contacts 32,

31, 59 and 59'. The last position of the contact 42 that operates themechanism is opposite the contact 47 which cooperates with the contact31 at the opposite end of the series or that contact in series with thewire 99'.

It will thus be seen that a series of selections is made in accordancewith the position of the indicating member, said selections being madein two steps, one step of which is dependent upon the contact 31opposite which the movable contact 42 is located, and

the. other of which is dependent u on the contact member 43, 44, 45, 46or 4 opposite which the movable contact 42 is located.

It will also be seen that a positive means is provided for dischargingarticles from the mechanism that are out of the range of the selectionsof the device by the provision of the stop members and cooperatingcontacts associated with said stop members.

It will also be noted in connection with the mechanical features of theselector that by providing the adjustment for the bearings of theneedle, all possibility of the needle sticking because of the same notbeing properly aligned, between the contacts will be avoided and thatdue to the fact that the contacts are positively separated by means of acam and are brought together only by means of a spring device, thetension of which is adjustable, there will be no injury done to themovable contact 42 or the faces of the positively arranged contacts, dueto the contacts moving into engagement.

Having thus described my invention, what I desire to claim and secure byU. S. Letters Patent is:

1. A device of the character described com prising two sets ofoppositely arranged individual contacts, and a contact member mountedfor movement between the opposin faces of said contacts, bothof saidsets 0 contacts being movably mounted and means for moving said setstoward and away from each other.

2. A device of the character described comprising two sets of oppositelyarranged contacts arranged in rows, and a contact member mounted formovement between the opposing faces of said contacts along said rows,both of said sets of contacts" being movably mounted, means for movingsaid sets away from each other, and means for urging said sets ofcontacts toward each other.

3. A device of the character described comprising two sets of oppositelyarranged contacts arranged in rows, and a contact member mounted formovement between the opposing faces of said contacts along said rows,both of said sets of contacts being movably mounted, means for movingsaid sets away from each other, and resilient means for urging said setsof contacts towardeach other.

4. A device of the character described comprising two setsof oppositelyarranged contacts, the opposed faces of said contacts being curved andparallel so as to provide a uniform space therebetween, a contact membermounted to move between said contacts in a curved path and means foradjusting said movable contact member.

5. A device of the character described comprising two sets of oppositelyarranged contacts, the opposed faces of said contacts being curved andparallel so as to provide a uniform space therebetween, a contact membermounted to move between said contacts in a curved path and means foradjusting said movable contact member transversely of said space.

6. A device of the character described comprising two sets of oppositelyarranged contacts, the opposed faces of said contacts being curved andparallel so as to provide a uniform space therebetween, a. contactmember mounted on an arm, a pivot member about which said arm turns, andmeans for adjusting said pivot so that said contact member will movefreely between said contacts.

7. A device of the character described comprising sets of oppositelyarranged contacts, said contacts being movable toward and away from eachother, and having the opposed faces thereof curved and parallel so as toprovide a space of substantially uniform width therebetween when saidcontacts are separated, a needle mounted to swing about a pivot member,a contact member mounted on said needle, and means for adjusting thepivot of said needle to so position the contact member mounted thereonas to provide for the free swinging thereof between said sets ofcontacts when the same are separated.

8. A device of the character described comprising a base member,oppositely arranged sets of contacts movably mounted relative to saidbase member, a needle supporting member adjustably mounted on said basemember, and a swinging needle mounted on said supporting member to movebetween said sets of contacts.

9. A device of the character described comprising a base member,oppositely arranged sets of contacts movably mounted relative to saidbase member, a needle supporting member slidably mounted on said basemember, means for adjusting said 1nember relative to said base, and aneedle mounted on said supporting member to swing in a plane and havinga. member thereon movable relative thereto and moving between said setsof contacts.

10. A device of the character described comprising a base member,oppositely arranged sets of contacts movably mounted relative to saidbase member, a needle supporting member, a swinging needle movablebetween said sets of contacts, cooperating guide members on said, basemember and said needle supporting member, and means for moving saidneedle supporting member along said guides to adjust the position ofsaid needle.

11. A device of the character described comprising a. base member,oppositely arranged sets of contacts movably mounted relative to saidbase member, a needle supporting member, a swinging'needle movablebetween said sets of contacts cooperating guide members on said basemember and said needle supporting member, and an adjusting screw formoving said needle supporting member along said guides to ad just theposition of the pivot of said needle.

12. A device of the character described comprising oppositely arrangedsets of contacts the contacts of each set comprising a progressivelyarranged series of contacts, and a contact member mounted to movebetween said sets of contacts to complete the circuit between 0 positecontacts, the end contacts olf one 0 said sets being provided with stopmembers to limit the movement of said movable contact member oppositethe end contacts of said sets, said end contacts being connected withthe contacts of said series adjacent one end contact of each set.

13. A device of the character described comprising oppositely arrangedsets of contacts the contacts of each set comprising a progressivelyarranged series of contacts, means for moving said sets of contactstoward and away from each other, stops on the end contacts of one ofsaid sets and a movable contact member adapted to complete the circuitbetween opposite contacts and engaging said stops to limit the movementthereof opposite the end contacts of said sets, the end contacts of eachset being connected with each other and with a contact of said series.

14. In a device of the character described,

oppositely arranged sets of contacts the contacts of each set comprisinga progressively arranged series of contacts, a contact making membermovable between said sets of contacts and adapted to cooperatetherewith, means for moving said contact making member into position inaccordance with the fluctuations of an electric current and stops forlimiting the movement of said contact making member opposite the endcontacts of said sets, the end contacts of each set being connected inparallel.

15. In a device of the character described, a support provided withguide members, rods mounted for movement in said guide members,oppositely arranged sets of contacts mounted on said rods, one of saidsets of contacts being mounted to move with said rods and the other ofsaid sets of contacts being movable on said rods, means for moving saidrods and a connection between said sets of contacts, whereby saidcontacts are moved in opposite directions upon movement of said rods.

16. In a device of the character described, asupport rovided with guidemembers, rods mounted or movement in said guide members, oppositelyarranged sets .of contacts mounted on said rods, one of said sets ofcontacts being mounted to move with said rods and the other of said setsof contacts being movable on said rods, a spring for moving said rods inone direction, means for moving said rods in the opposite directionagainst the action of said s ring, and a connection between said sets 0%contacts, whereby said contacts are moved in opposite directions uponmovement of said rods.

17. In a device of the character described, a support provided with idemembers, rods mounted for movement 1n said guide members, oppositelyarranged sets of contacts mounted on said rods, one of said sets ofcontacts being mounted to move with said rods and the other of said setsof contacts being movable on said rods, means for moving said rods and aconnection between said sets of contacts comprising a bell crank lever,whereby said contacts are moved in opposite directions upon movement ofsaid rods.

18. In a device of the character described, a support provided with uidemembers, rods mounted for movement in said guide members, oppositelyarranged sets of contacts mounted on said rods, one of said sets ofcontacts being mounted to move with said rods and the other of saidsets'of contacts being movable on said rods, means for moving said rodsand a connection be-- tween said sets of contacts comprising a bellcrank lever having its pivot mounted on said support and having apivotal connection with one of said sets of contacts and being connectedthrough a pivoted link to the other of said sets of contacts, wherebysaid contacts are moved in opposite directions upon movement of saidrods.

' the same,

19. A selective control device comprising an arm mounted to swing abouta pivot, means for swinging said arm, a contact making member looselymounted on said arm, oppositely arranged sets of contacts, said sets ofcontacts being movable toward each other to clamp said contact memberbetween and a plurality of operating circuits connected with saidcontacts, said contact making member operating along said sets ofcontacts and between the same.

-. A selective control device comprising oppositely arranged rows' ofcontacts, a pivoted arm, means for moving said arm about its pivot, acontact making member suspended between said contacts from said arm andmovable along said rowsi as said arm swings on its pivot, and means formoving said rows of contacts toward each other to clamp said contactmember between certain of said contacts. I

21.'A selective control" device comprising oppositely arranged rows ofcontacts, a pivoted arm, means for moving said arm about its pivot, acontact making member freely suspended said arm and movable along saidrows as said arm swings on its pivot, and means for moving said rows ofcontacts toward each other to clamp said contact member between certainof said contacts. I

In witness whereof, I hereunto subscribe my name this 19th day ofSeptember, A. D. 1921.

LESTER L. LADD.-

between said contacts fromv

